board/st/stm32mp1/stm32mp1.c

   1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
   4  */
   5 #include <common.h>
   6 #include <adc.h>
   7 #include <config.h>
   8 #include <clk.h>
   9 #include <dm.h>
  10 #include <environment.h>
  11 #include <g_dnl.h>
  12 #include <generic-phy.h>
  13 #include <i2c.h>
  14 #include <led.h>
  15 #include <misc.h>
  16 #include <mtd.h>
  17 #include <mtd_node.h>
  18 #include <phy.h>
  19 #include <reset.h>
  20 #include <syscon.h>
  21 #include <usb.h>
  22 #include <asm/io.h>
  23 #include <asm/gpio.h>
  24 #include <asm/arch/stm32.h>
  25 #include <asm/arch/sys_proto.h>
  26 #include <jffs2/load_kernel.h>
  27 #include <power/regulator.h>
  28 #include <usb/dwc2_udc.h>
  29
  30 /* SYSCFG registers */
  31 #define SYSCFG_BOOTR            0x00
  32 #define SYSCFG_PMCSETR          0x04
  33 #define SYSCFG_IOCTRLSETR       0x18
  34 #define SYSCFG_ICNR             0x1C
  35 #define SYSCFG_CMPCR            0x20
  36 #define SYSCFG_CMPENSETR        0x24
  37 #define SYSCFG_PMCCLRR          0x44
  38
  39 #define SYSCFG_BOOTR_BOOT_MASK          GENMASK(2, 0)
  40 #define SYSCFG_BOOTR_BOOTPD_SHIFT       4
  41
  42 #define SYSCFG_IOCTRLSETR_HSLVEN_TRACE          BIT(0)
  43 #define SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI        BIT(1)
  44 #define SYSCFG_IOCTRLSETR_HSLVEN_ETH            BIT(2)
  45 #define SYSCFG_IOCTRLSETR_HSLVEN_SDMMC          BIT(3)
  46 #define SYSCFG_IOCTRLSETR_HSLVEN_SPI            BIT(4)
  47
  48 #define SYSCFG_CMPCR_SW_CTRL            BIT(1)
  49 #define SYSCFG_CMPCR_READY              BIT(8)
  50
  51 #define SYSCFG_CMPENSETR_MPU_EN         BIT(0)
  52
  53 #define SYSCFG_PMCSETR_ETH_CLK_SEL      BIT(16)
  54 #define SYSCFG_PMCSETR_ETH_REF_CLK_SEL  BIT(17)
  55
  56 #define SYSCFG_PMCSETR_ETH_SELMII       BIT(20)
  57
  58 #define SYSCFG_PMCSETR_ETH_SEL_MASK     GENMASK(23, 21)
  59 #define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
  60 #define SYSCFG_PMCSETR_ETH_SEL_RGMII    BIT(21)
  61 #define SYSCFG_PMCSETR_ETH_SEL_RMII     BIT(23)
  62
  63 /*
  64  * Get a global data pointer
  65  */
  66 DECLARE_GLOBAL_DATA_PTR;
  67
  68 #define USB_LOW_THRESHOLD_UV            200000
  69 #define USB_WARNING_LOW_THRESHOLD_UV    660000
  70 #define USB_START_LOW_THRESHOLD_UV      1230000
  71 #define USB_START_HIGH_THRESHOLD_UV     2150000
  72
  73 int checkboard(void)
  74 {
  75         int ret;
  76         char *mode;
  77         u32 otp;
  78         struct udevice *dev;
  79         const char *fdt_compat;
  80         int fdt_compat_len;
  81
  82         if (IS_ENABLED(CONFIG_STM32MP1_OPTEE))
  83                 mode = "trusted with OP-TEE";
  84         else if (IS_ENABLED(CONFIG_STM32MP1_TRUSTED))
  85                 mode = "trusted";
  86         else
  87                 mode = "basic";
  88
  89         printf("Board: stm32mp1 in %s mode", mode);
  90         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
  91                                  &fdt_compat_len);
  92         if (fdt_compat && fdt_compat_len)
  93                 printf(" (%s)", fdt_compat);
  94         puts("\n");
  95
  96         ret = uclass_get_device_by_driver(UCLASS_MISC,
  97                                           DM_GET_DRIVER(stm32mp_bsec),
  98                                           &dev);
  99
 100         if (!ret)
 101                 ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 102                                 &otp, sizeof(otp));
 103         if (!ret && otp) {
 104                 printf("Board: MB%04x Var%d Rev.%c-%02d\n",
 105                        otp >> 16,
 106                        (otp >> 12) & 0xF,
 107                        ((otp >> 8) & 0xF) - 1 + 'A',
 108                        otp & 0xF);
 109         }
 110
 111         return 0;
 112 }
 113
 114 static void board_key_check(void)
 115 {
 116 #if defined(CONFIG_FASTBOOT) || defined(CONFIG_CMD_STM32PROG)
 117         ofnode node;
 118         struct gpio_desc gpio;
 119         enum forced_boot_mode boot_mode = BOOT_NORMAL;
 120
 121         node = ofnode_path("/config");
 122         if (!ofnode_valid(node)) {
 123                 debug("%s: no /config node?\n", __func__);
 124                 return;
 125         }
 126 #ifdef CONFIG_FASTBOOT
 127         if (gpio_request_by_name_nodev(node, "st,fastboot-gpios", 0,
 128                                        &gpio, GPIOD_IS_IN)) {
 129                 debug("%s: could not find a /config/st,fastboot-gpios\n",
 130                       __func__);
 131         } else {
 132                 if (dm_gpio_get_value(&gpio)) {
 133                         puts("Fastboot key pressed, ");
 134                         boot_mode = BOOT_FASTBOOT;
 135                 }
 136
 137                 dm_gpio_free(NULL, &gpio);
 138         }
 139 #endif
 140 #ifdef CONFIG_CMD_STM32PROG
 141         if (gpio_request_by_name_nodev(node, "st,stm32prog-gpios", 0,
 142                                        &gpio, GPIOD_IS_IN)) {
 143                 debug("%s: could not find a /config/st,stm32prog-gpios\n",
 144                       __func__);
 145         } else {
 146                 if (dm_gpio_get_value(&gpio)) {
 147                         puts("STM32Programmer key pressed, ");
 148                         boot_mode = BOOT_STM32PROG;
 149                 }
 150                 dm_gpio_free(NULL, &gpio);
 151         }
 152 #endif
 153
 154         if (boot_mode != BOOT_NORMAL) {
 155                 puts("entering download mode...\n");
 156                 clrsetbits_le32(TAMP_BOOT_CONTEXT,
 157                                 TAMP_BOOT_FORCED_MASK,
 158                                 boot_mode);
 159         }
 160 #endif
 161 }
 162
 163 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
 164
 165 /* STMicroelectronics STUSB1600 Type-C controller */
 166 #define STUSB1600_CC_CONNECTION_STATUS          0x0E
 167
 168 /* STUSB1600_CC_CONNECTION_STATUS bitfields */
 169 #define STUSB1600_CC_ATTACH                     BIT(0)
 170
 171 static int stusb1600_init(struct udevice **dev_stusb1600)
 172 {
 173         ofnode node;
 174         struct udevice *dev, *bus;
 175         int ret;
 176         u32 chip_addr;
 177
 178         *dev_stusb1600 = NULL;
 179
 180         /* if node stusb1600 is present, means DK1 or DK2 board */
 181         node = ofnode_by_compatible(ofnode_null(), "st,stusb1600");
 182         if (!ofnode_valid(node))
 183                 return -ENODEV;
 184
 185         ret = ofnode_read_u32(node, "reg", &chip_addr);
 186         if (ret)
 187                 return -EINVAL;
 188
 189         ret = uclass_get_device_by_ofnode(UCLASS_I2C, ofnode_get_parent(node),
 190                                           &bus);
 191         if (ret) {
 192                 printf("bus for stusb1600 not found\n");
 193                 return -ENODEV;
 194         }
 195
 196         ret = dm_i2c_probe(bus, chip_addr, 0, &dev);
 197         if (!ret)
 198                 *dev_stusb1600 = dev;
 199
 200         return ret;
 201 }
 202
 203 static int stusb1600_cable_connected(struct udevice *dev)
 204 {
 205         u8 status;
 206
 207         if (dm_i2c_read(dev, STUSB1600_CC_CONNECTION_STATUS, &status, 1))
 208                 return 0;
 209
 210         return status & STUSB1600_CC_ATTACH;
 211 }
 212
 213 #include <usb/dwc2_udc.h>
 214 int g_dnl_board_usb_cable_connected(void)
 215 {
 216         struct udevice *stusb1600;
 217         struct udevice *dwc2_udc_otg;
 218         int ret;
 219
 220         if (!stusb1600_init(&stusb1600))
 221                 return stusb1600_cable_connected(stusb1600);
 222
 223         ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC,
 224                                           DM_GET_DRIVER(dwc2_udc_otg),
 225                                           &dwc2_udc_otg);
 226         if (!ret)
 227                 debug("dwc2_udc_otg init failed\n");
 228
 229         return dwc2_udc_B_session_valid(dwc2_udc_otg);
 230 }
 231 #endif /* CONFIG_USB_GADGET */
 232
 233 static int get_led(struct udevice **dev, char *led_string)
 234 {
 235         char *led_name;
 236         int ret;
 237
 238         led_name = fdtdec_get_config_string(gd->fdt_blob, led_string);
 239         if (!led_name) {
 240                 pr_debug("%s: could not find %s config string\n",
 241                          __func__, led_string);
 242                 return -ENOENT;
 243         }
 244         ret = led_get_by_label(led_name, dev);
 245         if (ret) {
 246                 debug("%s: get=%d\n", __func__, ret);
 247                 return ret;
 248         }
 249
 250         return 0;
 251 }
 252
 253 static int setup_led(enum led_state_t cmd)
 254 {
 255         struct udevice *dev;
 256         int ret;
 257
 258         ret = get_led(&dev, "u-boot,boot-led");
 259         if (ret)
 260                 return ret;
 261
 262         ret = led_set_state(dev, cmd);
 263         return ret;
 264 }
 265
 266 static int board_check_usb_power(void)
 267 {
 268         struct ofnode_phandle_args adc_args;
 269         struct udevice *adc;
 270         struct udevice *led;
 271         ofnode node;
 272         unsigned int raw;
 273         int max_uV = 0;
 274         int min_uV = USB_START_HIGH_THRESHOLD_UV;
 275         int ret, uV, adc_count;
 276         u32 nb_blink;
 277         u8 i;
 278         node = ofnode_path("/config");
 279         if (!ofnode_valid(node)) {
 280                 debug("%s: no /config node?\n", __func__);
 281                 return -ENOENT;
 282         }
 283
 284         /*
 285          * Retrieve the ADC channels devices and get measurement
 286          * for each of them
 287          */
 288         adc_count = ofnode_count_phandle_with_args(node, "st,adc_usb_pd",
 289                                                    "#io-channel-cells");
 290         if (adc_count < 0) {
 291                 if (adc_count == -ENOENT)
 292                         return 0;
 293
 294                 pr_err("%s: can't find adc channel (%d)\n", __func__,
 295                        adc_count);
 296
 297                 return adc_count;
 298         }
 299
 300         for (i = 0; i < adc_count; i++) {
 301                 if (ofnode_parse_phandle_with_args(node, "st,adc_usb_pd",
 302                                                    "#io-channel-cells", 0, i,
 303                                                    &adc_args)) {
 304                         pr_debug("%s: can't find /config/st,adc_usb_pd\n",
 305                                  __func__);
 306                         return 0;
 307                 }
 308
 309                 ret = uclass_get_device_by_ofnode(UCLASS_ADC, adc_args.node,
 310                                                   &adc);
 311
 312                 if (ret) {
 313                         pr_err("%s: Can't get adc device(%d)\n", __func__,
 314                                ret);
 315                         return ret;
 316                 }
 317
 318                 ret = adc_channel_single_shot(adc->name, adc_args.args[0],
 319                                               &raw);
 320                 if (ret) {
 321                         pr_err("%s: single shot failed for %s[%d]!\n",
 322                                __func__, adc->name, adc_args.args[0]);
 323                         return ret;
 324                 }
 325                 /* Convert to uV */
 326                 if (!adc_raw_to_uV(adc, raw, &uV)) {
 327                         if (uV > max_uV)
 328                                 max_uV = uV;
 329                         if (uV < min_uV)
 330                                 min_uV = uV;
 331                         pr_debug("%s: %s[%02d] = %u, %d uV\n", __func__,
 332                                  adc->name, adc_args.args[0], raw, uV);
 333                 } else {
 334                         pr_err("%s: Can't get uV value for %s[%d]\n",
 335                                __func__, adc->name, adc_args.args[0]);
 336                 }
 337         }
 338
 339         /*
 340          * If highest value is inside 1.23 Volts and 2.10 Volts, that means
 341          * board is plugged on an USB-C 3A power supply and boot process can
 342          * continue.
 343          */
 344         if (max_uV > USB_START_LOW_THRESHOLD_UV &&
 345             max_uV <= USB_START_HIGH_THRESHOLD_UV &&
 346             min_uV <= USB_LOW_THRESHOLD_UV)
 347                 return 0;
 348
 349         pr_err("****************************************************\n");
 350
 351         /*
 352          * If highest and lowest value are either both below
 353          * USB_LOW_THRESHOLD_UV or both above USB_LOW_THRESHOLD_UV, that
 354          * means USB TYPE-C is in unattached mode, this is an issue, make
 355          * u-boot,error-led blinking and stop boot process.
 356          */
 357         if ((max_uV > USB_LOW_THRESHOLD_UV &&
 358              min_uV > USB_LOW_THRESHOLD_UV) ||
 359              (max_uV <= USB_LOW_THRESHOLD_UV &&
 360              min_uV <= USB_LOW_THRESHOLD_UV)) {
 361                 pr_err("* ERROR USB TYPE-C connection in unattached mode   *\n");
 362                 pr_err("* Check that USB TYPE-C cable is correctly plugged *\n");
 363                 /* with 125ms interval, led will blink for 17.02 years ....*/
 364                 nb_blink = U32_MAX;
 365         }
 366
 367         if (max_uV > USB_LOW_THRESHOLD_UV &&
 368             max_uV <= USB_WARNING_LOW_THRESHOLD_UV &&
 369             min_uV <= USB_LOW_THRESHOLD_UV) {
 370                 pr_err("*        WARNING 500mA power supply detected       *\n");
 371                 nb_blink = 2;
 372         }
 373
 374         if (max_uV > USB_WARNING_LOW_THRESHOLD_UV &&
 375             max_uV <= USB_START_LOW_THRESHOLD_UV &&
 376             min_uV <= USB_LOW_THRESHOLD_UV) {
 377                 pr_err("*       WARNING 1.5mA power supply detected        *\n");
 378                 nb_blink = 3;
 379         }
 380
 381         /*
 382          * If highest value is above 2.15 Volts that means that the USB TypeC
 383          * supplies more than 3 Amp, this is not compliant with TypeC specification
 384          */
 385         if (max_uV > USB_START_HIGH_THRESHOLD_UV) {
 386                 pr_err("*      USB TYPE-C charger not compliant with       *\n");
 387                 pr_err("*                   specification                  *\n");
 388                 pr_err("****************************************************\n\n");
 389                 /* with 125ms interval, led will blink for 17.02 years ....*/
 390                 nb_blink = U32_MAX;
 391         } else {
 392                 pr_err("*     Current too low, use a 3A power supply!      *\n");
 393                 pr_err("****************************************************\n\n");
 394         }
 395
 396         ret = get_led(&led, "u-boot,error-led");
 397         if (ret) {
 398                 /* in unattached case, the boot process must be stopped */
 399                 if (nb_blink == U32_MAX)
 400                         hang();
 401                 return ret;
 402         }
 403
 404         /* make u-boot,error-led blinking */
 405         for (i = 0; i < nb_blink * 2; i++) {
 406                 led_set_state(led, LEDST_TOGGLE);
 407                 mdelay(125);
 408         }
 409         led_set_state(led, LEDST_ON);
 410
 411         return 0;
 412 }
 413
 414 static void sysconf_init(void)
 415 {
 416 #ifndef CONFIG_STM32MP1_TRUSTED
 417         u8 *syscfg;
 418 #ifdef CONFIG_DM_REGULATOR
 419         struct udevice *pwr_dev;
 420         struct udevice *pwr_reg;
 421         struct udevice *dev;
 422         int ret;
 423         u32 otp = 0;
 424 #endif
 425         u32 bootr;
 426
 427         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 428
 429         /* interconnect update : select master using the port 1 */
 430         /* LTDC = AXI_M9 */
 431         /* GPU  = AXI_M8 */
 432         /* today information is hardcoded in U-Boot */
 433         writel(BIT(9), syscfg + SYSCFG_ICNR);
 434
 435         /* disable Pull-Down for boot pin connected to VDD */
 436         bootr = readl(syscfg + SYSCFG_BOOTR);
 437         bootr &= ~(SYSCFG_BOOTR_BOOT_MASK << SYSCFG_BOOTR_BOOTPD_SHIFT);
 438         bootr |= (bootr & SYSCFG_BOOTR_BOOT_MASK) << SYSCFG_BOOTR_BOOTPD_SHIFT;
 439         writel(bootr, syscfg + SYSCFG_BOOTR);
 440
 441 #ifdef CONFIG_DM_REGULATOR
 442         /* High Speed Low Voltage Pad mode Enable for SPI, SDMMC, ETH, QSPI
 443          * and TRACE. Needed above ~50MHz and conditioned by AFMUX selection.
 444          * The customer will have to disable this for low frequencies
 445          * or if AFMUX is selected but the function not used, typically for
 446          * TRACE. Otherwise, impact on power consumption.
 447          *
 448          * WARNING:
 449          *   enabling High Speed mode while VDD>2.7V
 450          *   with the OTP product_below_2v5 (OTP 18, BIT 13)
 451          *   erroneously set to 1 can damage the IC!
 452          *   => U-Boot set the register only if VDD < 2.7V (in DT)
 453          *      but this value need to be consistent with board design
 454          */
 455         ret = syscon_get_by_driver_data(STM32MP_SYSCON_PWR, &pwr_dev);
 456         if (!ret) {
 457                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 458                                                   DM_GET_DRIVER(stm32mp_bsec),
 459                                                   &dev);
 460                 if (ret) {
 461                         pr_err("Can't find stm32mp_bsec driver\n");
 462                         return;
 463                 }
 464
 465                 ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
 466                 if (!ret)
 467                         otp = otp & BIT(13);
 468
 469                 /* get VDD = pwr-supply */
 470                 ret = device_get_supply_regulator(pwr_dev, "pwr-supply",
 471                                                   &pwr_reg);
 472
 473                 /* check if VDD is Low Voltage */
 474                 if (!ret) {
 475                         if (regulator_get_value(pwr_reg) < 2700000) {
 476                                 writel(SYSCFG_IOCTRLSETR_HSLVEN_TRACE |
 477                                        SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI |
 478                                        SYSCFG_IOCTRLSETR_HSLVEN_ETH |
 479                                        SYSCFG_IOCTRLSETR_HSLVEN_SDMMC |
 480                                        SYSCFG_IOCTRLSETR_HSLVEN_SPI,
 481                                        syscfg + SYSCFG_IOCTRLSETR);
 482
 483                                 if (!otp)
 484                                         pr_err("product_below_2v5=0: HSLVEN protected by HW\n");
 485                         } else {
 486                                 if (otp)
 487                                         pr_err("product_below_2v5=1: HSLVEN update is destructive, no update as VDD>2.7V\n");
 488                         }
 489                 } else {
 490                         debug("VDD unknown");
 491                 }
 492         }
 493 #endif
 494
 495         /* activate automatic I/O compensation
 496          * warning: need to ensure CSI enabled and ready in clock driver
 497          */
 498         writel(SYSCFG_CMPENSETR_MPU_EN, syscfg + SYSCFG_CMPENSETR);
 499
 500         while (!(readl(syscfg + SYSCFG_CMPCR) & SYSCFG_CMPCR_READY))
 501                 ;
 502         clrbits_le32(syscfg + SYSCFG_CMPCR, SYSCFG_CMPCR_SW_CTRL);
 503 #endif
 504 }
 505
 506 /* board dependent setup after realloc */
 507 int board_init(void)
 508 {
 509         struct udevice *dev;
 510
 511         /* address of boot parameters */
 512         gd->bd->bi_boot_params = STM32_DDR_BASE + 0x100;
 513
 514         /* probe all PINCTRL for hog */
 515         for (uclass_first_device(UCLASS_PINCTRL, &dev);
 516              dev;
 517              uclass_next_device(&dev)) {
 518                 pr_debug("probe pincontrol = %s\n", dev->name);
 519         }
 520
 521         board_key_check();
 522
 523 #ifdef CONFIG_DM_REGULATOR
 524         regulators_enable_boot_on(_DEBUG);
 525 #endif
 526
 527         sysconf_init();
 528
 529         if (IS_ENABLED(CONFIG_LED))
 530                 led_default_state();
 531
 532         return 0;
 533 }
 534
 535 int board_late_init(void)
 536 {
 537 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 538         const void *fdt_compat;
 539         int fdt_compat_len;
 540
 541         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 542                                  &fdt_compat_len);
 543         if (fdt_compat && fdt_compat_len) {
 544                 if (strncmp(fdt_compat, "st,", 3) != 0)
 545                         env_set("board_name", fdt_compat);
 546                 else
 547                         env_set("board_name", fdt_compat + 3);
 548         }
 549 #endif
 550
 551         /* for DK1/DK2 boards */
 552         board_check_usb_power();
 553
 554         return 0;
 555 }
 556
 557 void board_quiesce_devices(void)
 558 {
 559         setup_led(LEDST_OFF);
 560 }
 561
 562 /* board interface eth init */
 563 /* this is a weak define that we are overriding */
 564 int board_interface_eth_init(phy_interface_t interface_type,
 565                              bool eth_clk_sel_reg, bool eth_ref_clk_sel_reg)
 566 {
 567         u8 *syscfg;
 568         u32 value;
 569
 570         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 571
 572         if (!syscfg)
 573                 return -ENODEV;
 574
 575         switch (interface_type) {
 576         case PHY_INTERFACE_MODE_MII:
 577                 value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 578                         SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 579                 debug("%s: PHY_INTERFACE_MODE_MII\n", __func__);
 580                 break;
 581         case PHY_INTERFACE_MODE_GMII:
 582                 if (eth_clk_sel_reg)
 583                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 584                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 585                 else
 586                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
 587                 debug("%s: PHY_INTERFACE_MODE_GMII\n", __func__);
 588                 break;
 589         case PHY_INTERFACE_MODE_RMII:
 590                 if (eth_ref_clk_sel_reg)
 591                         value = SYSCFG_PMCSETR_ETH_SEL_RMII |
 592                                 SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 593                 else
 594                         value = SYSCFG_PMCSETR_ETH_SEL_RMII;
 595                 debug("%s: PHY_INTERFACE_MODE_RMII\n", __func__);
 596                 break;
 597         case PHY_INTERFACE_MODE_RGMII:
 598         case PHY_INTERFACE_MODE_RGMII_ID:
 599         case PHY_INTERFACE_MODE_RGMII_RXID:
 600         case PHY_INTERFACE_MODE_RGMII_TXID:
 601                 if (eth_clk_sel_reg)
 602                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
 603                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 604                 else
 605                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
 606                 debug("%s: PHY_INTERFACE_MODE_RGMII\n", __func__);
 607                 break;
 608         default:
 609                 debug("%s: Do not manage %d interface\n",
 610                       __func__, interface_type);
 611                 /* Do not manage others interfaces */
 612                 return -EINVAL;
 613         }
 614
 615         /* clear and set ETH configuration bits */
 616         writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
 617                SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
 618                syscfg + SYSCFG_PMCCLRR);
 619         writel(value, syscfg + SYSCFG_PMCSETR);
 620
 621         return 0;
 622 }
 623
 624 enum env_location env_get_location(enum env_operation op, int prio)
 625 {
 626         u32 bootmode = get_bootmode();
 627
 628         if (prio)
 629                 return ENVL_UNKNOWN;
 630
 631         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 632 #ifdef CONFIG_ENV_IS_IN_EXT4
 633         case BOOT_FLASH_SD:
 634         case BOOT_FLASH_EMMC:
 635                 return ENVL_EXT4;
 636 #endif
 637 #ifdef CONFIG_ENV_IS_IN_UBI
 638         case BOOT_FLASH_NAND:
 639                 return ENVL_UBI;
 640 #endif
 641 #ifdef CONFIG_ENV_IS_IN_SPI_FLASH
 642         case BOOT_FLASH_NOR:
 643                 return ENVL_SPI_FLASH;
 644 #endif
 645         default:
 646                 return ENVL_NOWHERE;
 647         }
 648 }
 649
 650 #if defined(CONFIG_ENV_IS_IN_EXT4)
 651 const char *env_ext4_get_intf(void)
 652 {
 653         u32 bootmode = get_bootmode();
 654
 655         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 656         case BOOT_FLASH_SD:
 657         case BOOT_FLASH_EMMC:
 658                 return "mmc";
 659         default:
 660                 return "";
 661         }
 662 }
 663
 664 const char *env_ext4_get_dev_part(void)
 665 {
 666         static char *const dev_part[] = {"0:auto", "1:auto", "2:auto"};
 667         u32 bootmode = get_bootmode();
 668
 669         return dev_part[(bootmode & TAMP_BOOT_INSTANCE_MASK) - 1];
 670 }
 671 #endif
 672
 673 #ifdef CONFIG_SYS_MTDPARTS_RUNTIME
 674
 675 #define MTDPARTS_LEN            256
 676 #define MTDIDS_LEN              128
 677
 678 /**
 679  * The mtdparts_nand0 and mtdparts_nor0 variable tends to be long.
 680  * If we need to access it before the env is relocated, then we need
 681  * to use our own stack buffer. gd->env_buf will be too small.
 682  *
 683  * @param buf temporary buffer pointer MTDPARTS_LEN long
 684  * @return mtdparts variable string, NULL if not found
 685  */
 686 static const char *env_get_mtdparts(const char *str, char *buf)
 687 {
 688         if (gd->flags & GD_FLG_ENV_READY)
 689                 return env_get(str);
 690         if (env_get_f(str, buf, MTDPARTS_LEN) != -1)
 691                 return buf;
 692
 693         return NULL;
 694 }
 695
 696 /**
 697  * update the variables "mtdids" and "mtdparts" with content of mtdparts_<dev>
 698  */
 699 static void board_get_mtdparts(const char *dev,
 700                                char *mtdids,
 701                                char *mtdparts)
 702 {
 703         char env_name[32] = "mtdparts_";
 704         char tmp_mtdparts[MTDPARTS_LEN];
 705         const char *tmp;
 706
 707         /* name of env variable to read = mtdparts_<dev> */
 708         strcat(env_name, dev);
 709         tmp = env_get_mtdparts(env_name, tmp_mtdparts);
 710         if (tmp) {
 711                 /* mtdids: "<dev>=<dev>, ...." */
 712                 if (mtdids[0] != '\0')
 713                         strcat(mtdids, ",");
 714                 strcat(mtdids, dev);
 715                 strcat(mtdids, "=");
 716                 strcat(mtdids, dev);
 717
 718                 /* mtdparts: "mtdparts=<dev>:<mtdparts_<dev>>;..." */
 719                 if (mtdparts[0] != '\0')
 720                         strncat(mtdparts, ";", MTDPARTS_LEN);
 721                 else
 722                         strcat(mtdparts, "mtdparts=");
 723                 strncat(mtdparts, dev, MTDPARTS_LEN);
 724                 strncat(mtdparts, ":", MTDPARTS_LEN);
 725                 strncat(mtdparts, tmp, MTDPARTS_LEN);
 726         }
 727 }
 728
 729 void board_mtdparts_default(const char **mtdids, const char **mtdparts)
 730 {
 731         struct udevice *dev;
 732         static char parts[2 * MTDPARTS_LEN + 1];
 733         static char ids[MTDIDS_LEN + 1];
 734         static bool mtd_initialized;
 735
 736         if (mtd_initialized) {
 737                 *mtdids = ids;
 738                 *mtdparts = parts;
 739                 return;
 740         }
 741
 742         memset(parts, 0, sizeof(parts));
 743         memset(ids, 0, sizeof(ids));
 744
 745         if (!uclass_get_device(UCLASS_MTD, 0, &dev))
 746                 board_get_mtdparts("nand0", ids, parts);
 747
 748         if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
 749                 board_get_mtdparts("nor0", ids, parts);
 750
 751         mtd_initialized = true;
 752         *mtdids = ids;
 753         *mtdparts = parts;
 754         debug("%s:mtdids=%s & mtdparts=%s\n", __func__, ids, parts);
 755 }
 756 #endif
 757
 758 #if defined(CONFIG_OF_BOARD_SETUP)
 759 int ft_board_setup(void *blob, bd_t *bd)
 760 {
 761 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
 762         struct node_info nodes[] = {
 763                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_NOR,  },
 764                 { "st,stm32mp15-fmc2",          MTD_DEV_TYPE_NAND, },
 765         };
 766         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 767 #endif
 768
 769         return 0;
 770 }
 771 #endif